Sunday, February 28, 2010

Assembling Juno: Screwdrivers and cablegami

Juno is my new computer. It's named after the asteroid, not the movie -- I saw a news item about the opposition of the asteroid Vesta, and thought that among the four major asteroids (Ceres, Vesta, Juno, Pallas) that I liked the name Juno best.

I wasn't planning on building a new computer for at least another six to ten months, but my three-year-old machine, tbroma (short for theobroma, "food of the gods," a reference to chocolate) had developed a quirk. Nine times out of ten, when turning the computer on, it would have a) forgotten what time it was, and b) disabled the network interface (no Internet). This fault is typical of a weak CMOS battery, but I changed it twice and the problem persisted. I would have to intercept each boot to fix the settings in the BIOS, so it was time to accelerate my schedule.

I won't bore you with parts selection; as always, I found the Silent PC Review web site invaluable. Joan will tell you that I peruse the forums there almost every day. My goal was faster, smaller, and cooler (less electricity) than tbroma. With three years of technology advances, I ought to be able to do all three.

Here's a view partway through the assembly process. The CPU heatsink and fan are mounted on the motherboard, front fan attached, and cables from the front ports and status lights plugged in. A 2.5" (laptop style), 500GB hard drive is attached to a plastic frame (slot rafter). The rafter is supposed to snap into the orange expansion slot at the bottom of the board, but that would put the drive and plastic tabs where they blocked parts of the motherboard. (The rafter is cut to 60% of its original size because that's all I needed.)
The two plastic gadgets at the front and back (not permanently mounted yet) are fan controllers that let me dial the fans up and down in speed, to get the best balance of cooling and quietness.

The tray for the slim optical drive blocks a lot of the case from the top, so it was usually kept to one side, and the fit checked now and then.
The heatsink is a mid-size aftermarket model, the CoolerMaster Gemini-S. Here we see that it clears the northbridge heatsink and the memory cards, but not by a whole lot. Install the memory cards first!
Some CPU heatsinks mount to the motherboard with a push-pin system (similar to the one you see on the black northbridge heatsink above) that many find awkward. This one attaches with a nice, solid backplate and screws. You add the screws that are going to pass through the motherboard to the clips (shown below), screw the clips onto the heatsink, and then fasten from the back side of the motherboard; even though there are more steps involved than with pushpins, you're never required to do difficult things in tiny spaces. The screw shown below actually threads through the hole in the clip, so it's solidly attached when you're handling the clip.
To gain efficiency and room for the larger heatsink/fan assembly, I replaced the power supply that came with the computer case with a picoPSU. The AC-DC conversion is done in an external brick, just like when plugging a laptop into the wall, and a small voltage converter plugs into the power socket on the motherboard.
Here I've circled the port on the picoPSU that lets you plug in an additional cable set. Unfortunately, it points straight back at the blue memory heatsinks, only 1mm or 2mm away. I could plug the cable set into this port, but the cables visibly pushed against the memory and back against the picoPSU, so I dropped that approach and got a cable splitter to turn one SATA power cable into two.

Here's a look into the top as I transitioned into the cablegami stage. The fan controllers are permanently mounted, and the CPU power cable snakes around the heatsink (required an extension!) The splitter cable is in evidence at the edge of the heatsink, and the 2.5" hard drive has its data and power cables plugged in. But nothing is tidy(ish) yet.
Just to emphasize the complications from the optical drive, here's a photo. Look at the length of the optical drive power and data cables -- they're intended for much larger cases. I'm using a case for mini ITX motherboards -- smaller than a micro-ATX motherboard, which is smaller than standard ATX. You'll see exterior shots later of my earlier, micro-ATX case and this mini ITX case.
Here's a shot of the left side after some cablegami efforts. The Y-splitter, power cable headed for the picoPSU, one of the optic-drive cables, and the CPU power cable are all tucked in the 1" gap between the plastic raft and the edge of the case. Similarly, the black data cable to the second storage device, an SSD (solid-state drive, using flash memory) takes advantage of that gap.
Looking at it from the right side, we see that the airspace in front of the fan is more or less clear of cable clutter. The small wires are below the airpath. (The SSD is in the small bay hanging from the bottom of the optic drive tray.)
Here, the case is buttoned up. Black mesh (window screen material) is backing the vented areas to protect against dropped little screws and other disasters. I also used it to cover the hole where the original power supply was installed. Black construction paper (think scrapbooking) blocks part of the left vent to match the right vent. I don't have a high-powered graphics card throwing off heat on the left side, so it's best to focus the airflow where it's going to be needed. (The color differences are exaggerated by the photo flash. It's a decent match in ordinary light.)
Here is juno positioned next to tbroma, still in use. My computing philosophy now emphasizes compactness in all things except monitors!
Now it's time to power juno up, see what happens, install Ubuntu 9.10, and move my files over.

Saturday, February 27, 2010

The Owls Are Back!

Last evening, twilight time, Joan and I heard odd hooting sounds in the woods. Something(s) were communicating back and forth, and our first thought was, "Owls?" We stepped out onto the deck, and backlit against the western sky was the unmistakable silhouette of an owl! We were excited, to say the least. In a way, this post brings me full circle, because it was our encounters with the barred owl family that inspired me to start a blog. We knew that barred owls tended to be loyal to a territory, and that they had raised two chicks last year, but we still felt lucky that just maybe they would be back again.

This morning exceeded our expectations. A "mob" of blue jays were scolding and scolding from trees near the owl sycamore, and hopping around the owl burrow. They were joined by a bunch of other birds, all of whom were flying around that sycamore and "buzzing" the cavity.  This went on for ten minutes or more, and even after the blue jays left, a little downy woodpecker just wasn't going to quit. She kept sidling up to the hole in the tree, then hopping/flying over to the opening and, at least a couple of times, peering down the hole before landing on the tree trunk. She kept up that circuit for another five minutes or so, as if she liked giving herself a good scare.

And then the owl came out of the burrow for a breath of air. I grabbed some quick photos, which are a touch blurred because they were taken through a window.
Considering that this is the exact same tree and cavity that they used last year, it looks good for more owl chicks this year.

We do wonder at the number of predators in these woods: the red fox pair, the owls, and a pair of red-tailed hawks that visit several times a week. Later this morning one of the red-tailed hawks lit ten feet from the owl tree and stared at it for a long time. They may not appreciate having competition from other predators, perhaps? Would the owl parents consider a fox kit a tasty morsel? Stay tuned.
 

Monday, February 22, 2010

Bhutan: Taktsang and home

Our arrival back in Paro was on New Year's eve. We knew we had an early morning the next day to climb to Taktsang, or Tiger's Nest, one of the most sacred temples in Bhutan, perched 2300 feet above the valley floor. Joan and I had a special interest in this visit, because in 2005 our group had squeezed the Taktsang hike into the end of a day that started in Thimphu. Several of our group had reached the main viewpoint, across a deep gorge from Taktsang, but failing daylight meant that there was no time to visit. Now, on New Year's Day we would visit the site sanctified by Guru Rinpoche. What an auspicious way to start 2010!

It dawned clear, calm, and frosty at the Zhiwaling.
After breakfast, Tshering drove us to the parking area for Tiger's Nest. We were in the shade for the first part of the hike, and gloves and jackets were the order of the day. As both we and the sun climbed higher, our bodies warmed up with the exertion, and once we hit the sun line it was time for me to stuff a layer or two into the daypack. At one switchback there was a look-ahead to our goal.
As we climbed higher we could look back down into the Paro valley.
Halfway up there is a teahouse, providing hot drinks, sweet crackers, and a pit stop. We regrouped and caught our breath for the second half. Here is a view of the teahouse among the trees, just before we reached it.
When most of the climbing is done, you reach a shoulder where there is an open ground with prayer wheels and prayer flags. Here you see the view as I'm about to reach it; the ground is still frosted in the shade.
A view of the grounds.
The prayer flags glowed in the early morning light.
From here until the main viewpoint the trail was a rolling level. Along the way there is a shrine dedicated to the previous Je Khenpo (religious leader of Bhutan).
He was born up here.
Tsewang told us how the Je Khenpo's body had gradually dried out, or otherwise gradually transformed itself, after his death; there had been no embalming but there was no decay. Tsewang has seen the body himself.

At the threshold of the viewpoint, Jillian proved to be a soft touch for the canine pilgrims.
We paused for a group photo with our goal in the background. (Did Namgay stay up late to see in the new year?)
You could look back and see the teahouse.
After a few steps there was a temple dedicated to Yeshe Tsogyal, a female disciple and chronicler of Guru Rinpoche, who gained Enlightenment while on retreat in this spot.
This is slightly out of order, but here is a good view looking back at Yeshe Tsogyal's shrine and our path down from it towards the gorge crossing.
From those steps, the temple was tantalizingly close.
A view looking out from the middle of the gorge.
Many have come this way over the centuries; today, we were among the first.
And now we have a pictorial gap, for no photographs are allowed anywhere at Tiger's Nest. There is a guardhouse just before you reach the complex, and everything -- walking sticks, day packs, camera, and, we discovered when we tried to walk on, even binoculars must be left behind at the little plaza beside the guardhouse. This intense security may be partially due to the "southern Bhutanese problem" and suspicions about the accidental fire in April 1998 that destroyed Tiger's Nest. (The temple was rebuilt with donations from all over the Buddhist world and reconsecrated in March 2005. I can't imagine the difficulty of rebuilding up here.)

Soon after entering we visited a large stone with an imprint or depression. The visitor is encouraged to stand at a starting line, close his or her eyes, step forward, and attempt to put their own thumb into the imprint. The rock-slab floor is uneven so it's no easy matter! None of us made it.

Then we visited three shrines of the several in the extended temple. A young girl, part of a family of what must be caretakers, unlocked each shrine room and administered the blessing water. We had an opportunity to sit and absorb some of the silence at the second shrine. At the final shrine we received a miniature dorje from a monk, on a string to be worn as a pendant around the neck. It is a reminder of the supreme indestructibility of knowledge.

After an hour or so we left the Tiger's Nest. It was an immensely satisfying visit after having fallen short in 2005. Here are a couple of looking-back views, with better light now that the sun is higher in the sky.
One our way back down to the teahouse, there was a good view down to our hotel in the valley. This picture is zoomed-in to magnify the hotel.
At the teahouse we regrouped yet again, and had hot tea, and were visited by avian pilgrims. My best guess is that this is a rufous sibia.
Near the bottom of the trail, now in bright light, were three water-powered prayer wheels.
After lunch at the Zhiwaling, we did some shopping in Paro. Joan and I spent most of our time at Chencho Handicraft, a workshop and outlet for weavers, invariably female, from more rural parts of Bhutan. Later we also spent some ngultrum at the hotel gift shop, which also had marvelous fabrics. Sadly, part of the afternoon was also dedicated to repacking. No longer would our luggage be slung into the back of a bus, but tomorrow it was going into the hold of an aircraft, with all of the reorganization that implies.

Our trekking group had a private farewell and recap dinner. Most of us started with Dragon Warmers, a drink that (we were told) was invented by a Yangphel Adventure guide. Bhutanese army officers receive a liquor ration -- sounds very British -- named Dragon Rum. A Dragon Warmer is based on hot apple juice, with Dragon Rum (or any rum that is handy) and a little lime and honey added. Cinnamon optional.

Tsewang gave us a slide show based on the pictures he had taken of our last two weeks, and it was warmly received. After dinner, each of us had a chance to speak to our experiences on the trek, and we were universally appreciative. Tshering played a couple of traditional tunes for us, and sang as well. (He's a very talented guy as well as an expert snowball thrower.)
Eventually the evening wound down, and we all returned to our rooms to finish packing. It was our farewell to Jen, who had an extremely early flight in the morning. Jim, Jillian, Joan, and I were on a late morning flight, so we were able to keep normal hours. At the airport, both of Druk Air's Airbus jets were on the tarmac; Jen's flight to India had already returned.
After a refueling stop at Bagdogra (the planes do not take off with full tanks of fuel, because of the challenging location) we found ourselves back in Bangkok. At 4:00AM the next day we took the shuttle to the airport, and were through initial security by 4:30! Because of the "Christmas bomber," there were additional pat-downs or wandings at the gate in both Bangkok and Tokyo, but everything worked as well as could be expected. Note: there is an origami museum/shop with some astonishing exhibits across from gate 26 at Narita.

Our luggage did not make the two-hour connection in O'Hare; the baggage recheck area after customs was swamped and the staff told us to just drop off the baggage carts and keep going. This spared us from doing laundry on our first day back, and the luggage arrived home safely 23 hours after we did.

It is difficult to summarize such a varied and richly packed journey. We experienced trekking, flora and fauna, cities and villages, home visits, architecture, crafts, dances and festivals, temples and shrines. Not to mention butter tea, ara, and the fiery chili and cheese national dish, ema datsi. Joan and I were blessed with great traveling companions and skilled and thoughtful guides. It will take a while to digest the trip, but writing this blog has helped that process along. Inevitably I will have omitted some things that I should not, but no casual account such as this can be comprehensive. Joan and I intend to return to Bhutan in a few more years, this time in warmer weather, to enjoy more of the flowers and birds. We've done November and December now. And we have every intention of going again with Geographic Expeditions (as long as they use Yangphel Adventure Travel).

To all of you who have kept up with this account, may I say "Kadinchey La" (thank you).

Monday, February 15, 2010

Reynoldsburg: Foxes!

Sitting at our kitchen window, waiting for today's snow to start (it hasn't stopped yet), Joan spotted a pair of red foxes investigating the woods. One chewed on the frozen leg of a deceased groundhog for a while, but gave it up. They did some pouncing in the snow, but I don't know if they caught anything or not. I shot some pictures through the window. As usual, click to enlarge.

Licking a paw (they don't want stuff to freeze in between the pads of their feet).
Taking a brief pause.
Almost hidden by the trees.
Is there something in its mouth?
Standing at attention (there is a fenced-in dog two houses down from us).
Trotting through the snow pack.
They made it a very exciting morning for us.

Sunday, February 14, 2010

Bhutan: Thimphu

Thimphu was our destination, and it meant climbing back up to Dochu La (10,000 feet). We stopped at the same place for lunch as we had heading out, just a short walk (one bend of the road) from the pass, and the clouds felt magnanimous, granting us peeks at the high ranges. Here is the wide-angled view from my camera.
Here is a zoom-in.
Then it was back down the mountain, to check in at the Taj Tashi hotel and freshen up before heading out again. The Taj is an international-class hotel that was just a construction site in 2005. As we pulled in dancers and singers were there to greet us.
The lobby, and all the rest of the hotel, was breathtaking. The display in the lobby included a gingerbread house, stacks of gaily wrapped boxes, and a creche.
There were only a few guests in evidence, probably because it was off-season, and during the holidays, and because of a big drop in tourist bookings due to the economy, particularly high-end ones.

Our first destination was the national Textile Museum. No photos here, but a stunning collection. One gallery is devoted to the various ethnic costumes from around Bhutan, displayed on mannequins. Large and larger religious hangings adorn one high wall. Adjacent to the gift shop, you can watch women weaving on traditional hand looms. The resulting fabrics dazzle with their colors and intricate patterns; some of the weaving for the royal family takes place here, and some of the items on display are on loan from the royal family.

After leaving the Textile Museum we went to the traditional paper-making factory. Here the paper is made from the bark of the daphne plant, which results in a durable and insect-resistant paper. Such a paper can be used for religious texts, envelopes, paper lanterns, and inventive artwork, such as the bookmarks with embedded flowers that I bought. In checking YouTube, I found a video (not mine) that just has to be from this factory.

Then it was time to change into our dinner clothes. Geographic Expeditions/Yangphel Adventure Travel had arranged a dinner with five Bhutanese to complement our five trekkers. These were, in the order printed on our list,
  • Mr. Tenzin Dorji, Chief Research Officer, Royal Privy Council
  • Ms. Sonam Choke, IT Graduate, North Bangalore University
  • Mr. Wangay Dorji, Head, Bhutan Infocom & Media Authority
  • Mr. Ugyen Yoeser, profession cyclist
  • Mr. Kharma Lotey, Bhutan director, Geographic Expeditions/Yangphel Adventure Travel.
Ugyen had originally been scheduled to be our trip leader, but had a conflict (big archery tournament) and we were lucky enough to get Tsewang Rinchen.

As the seating worked out, I spent much of my time with Tenzin and Wangay. These gents work hard to represent and develop Bhutan; as middle-aged professionals they represent, I feel, the progressive edge of Bhutanese administration, which is sometimes sluggish (imported from the Indian interpretation of the British bureaucracy). Tenzin, as a member of the Royal Privy Council, basically works on whatever project the royal family throws at them. Wangay's duties also seem far ranging -- overseeing media censorship, checking cellphone tower coverage -- just about anything to do with media or telecom. He had the whole table laughing at his experiences traveling abroad and encountering officials who thought his Bhutanese passport was obviously something made up. The South Koreans detained him, thinking him a likely infiltrator from the North, until the Korean Information Minister rescued him. Sad to say, yours truly was too tired have the forethought to take a picture of our hosts. My bad!

Tenzin and Wangay also made it clear that persons with skills useful to Bhutan were more than welcome to volunteer. IT and medical professionals (both represented in our trekkers) would be among those at the top of their list. Typically you might receive a visa to consult for, say, three months and then tour for three months. At least, that's what I think I heard!

Back to the Taj Tashi and our beds. We awoke the next morning to find that yesterday's sunshine had disappeared. It was snowing.
Through our window we saw a canine friend standing lookout.
It turns out that if snow reaches the valley floor at Thimphu it is a big deal, an unofficial holiday. Tsewang delayed our departure for half an hour while he called to see what places/attractions would be open, and which would be closed. The manager of the Handicraft Emporium sleepily suggested that it might open at noon. (It didn't.) As we left the hotel, a musician was playing.
First we tried the National Institute of Traditional Medicine, but that was closed. Then Tsewang took us to the National Library. That too was closed, but Tsewang took off in search of someone to let us in. The snow had stopped after a couple of inches had fallen, and all over Thimphu snowmen were being made and snowball fights conducted. We were no exception. (Tshering has quite an arm.)
Our ever-resourceful Tsewang found a staff member who found a caretaker with a key, so we were able to briefly visit the ground floor of the old National Library, adjacent to the new. The focus of this visit was the largest book in the world, a visual study of Bhutan spearheaded by Michael Hawley of the MIT Media Lab. 5 feet tall and 7 feet wide, weighing over 130 pounds, it's certified by Guinness:
Jillian posed to give the book some scale.
You can purchase a coffee-table version of this book from Amazon. Joan and I have a copy, and it's a treasure. You can also purchase a full-size copy from Amazon, but the price seems to have jumped from $15,000 to $30,000 at some point.

Next we visited one of favorite animals, the takin, at the Motithang Takin Preserve. Here, in a photo from 2005, is the origin story of the takin. It involves the Divine Madman. (Click the picture to enlarge.)
Right away we found one of our friends.
The snow was a grand attraction, though. At the entrance there was a father-daughter team watching another family's snowball fight.
Namgay felt we hadn't had quite enough frozen sport yet.
Around the bend -- the preserve is high on a hillside, the top of which sprouts telecom towers -- was a grand view of the Thimphu valley.
Driving back down, we stopped at another viewpoint and got a good look at the Thimphu dzong, the seat of government and religious administration. The parliament building is just out of the frame, and a nine-hole golf course just in front.
As our bus continued down the hill, who did we see but Toh, our camp manager from the trek! Warm greetings were exchanged and plans for lunch were laid.

Our final morning stop was the Memorial Chorten, dedicated to the third king of Bhutan. The three-story structure is one of the central points of the city, visited by tourists, pilgrims, and people wishing to socialize. Here is a figure just inside the gate, carrying a vessel for blessing water.
The three stories of the chorten can be climbed, and shrines visited, if you have the time. (The stone floors were extremely cold in November 2005.) We circumambulated the chorten but did not go in.
A side building holds several large prayer wheels. Some of the older Bhutanese settle in here for a session of visitation while the wheels rarely stop spinning.
On departure I zoomed in on some of the artwork of the gate.

We, including Toh, had lunch at the best pizza shop in Bhutan. The royal family orders out from there, we're told. It was good. I had a plain multi-cheese pizza, but the Bhutanese fellows had beef and chili (of course, chili) pizza. Nobody ordered the day's special, yak meat with blue cheese and greens on top. (It might have been the greens.)

The first part of the afternoon was dedicated to independent shopping. Joan and I visited handicraft stores, art stores, and even a couple of bookstores. We encountered our fellow trekkers once or twice, and gathered together at the bus with our loot in mid-afternoon. It was time to bid adieu to Thimphu and drive back to Paro, our final stop. On the way out of town, I took a through-the-bus-window photograph of the largest Buddha statue in the world, under construction. It is more than a statue; it will be a complete complex.
And then we were pack in Paro, where we began this auspicious trip. One more day, and one more hike.